Re: [PATCH mlx5-next v7 0/4] Dynamically assign MSI-X vectors count

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On Wed, Mar 10, 2021 at 01:09:06PM -0600, Bjorn Helgaas wrote:
> On Sun, Mar 07, 2021 at 10:55:24AM -0800, Alexander Duyck wrote:
> > On Sun, Feb 28, 2021 at 11:55 PM Leon Romanovsky <leon@xxxxxxxxxx> wrote:
> > > From: Leon Romanovsky <leonro@xxxxxxxxxx>
> > >
> > > @Alexander Duyck, please update me if I can add your ROB tag again
> > > to the series, because you liked v6 more.
> > >
> > > Thanks
> > >
> > > ---------------------------------------------------------------------------------
> > > Changelog
> > > v7:
> > >  * Rebase on top v5.12-rc1
> > >  * More english fixes
> > >  * Returned to static sysfs creation model as was implemented in v0/v1.

<...>

>   2) Should a VF sysfs file use the PF to implement this?
>
>      Can you elaborate on your idea here?  I guess
>      pci_iov_sysfs_link() makes a "virtfnX" link from the PF to the
>      VF, and you're thinking we could also make a "virtfnX_msix_count"
>      in the PF directory?  That's a really interesting idea.

I want to remind that we are talking about mlx5 devices that support
upto 255 VFs and they indeed are used to their limits. So seeing 255
links of virtfnX_msix_count in the same directory looks too much unpleasant
to me.

Thanks



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